Finding the Fourth Proportional to 445,824,176.80, 668,169,394.80 and 215,296,880.80
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Solution
The fourth proportional to 445,824,176.80, 668,169,394.80 and 215,296,880.80 is: 322,671,568.82
Step by Step Solution
- Step 1: Write the proportion equation
445,824,176.80 : 668,169,394.80 = 215,296,880.80 : x - Step 2: Convert to fraction form
445,824,176.80/668,169,394.80 = 215,296,880.80/x - Step 3: Cross multiply
445,824,176.80x = 668,169,394.80 × 215,296,880.80 - Step 4: Simplify right side
445,824,176.80x = 143,854,786,546,463,744 - Step 5: Solve for x
x = 143,854,786,546,463,744/445,824,176.80 - Step 6: Final answer
x = 322,671,568.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.